Source : Webster's Revised Unabridged Dictionary (1913)

Mahonia \Ma*ho"ni*a\, n. [Named after Bernard McMahon.] (Bot.)
   The Oregon grape, a species of barberry ({Berberis
   Aquifolium}), often cultivated for its hollylike foliage.

Source : WordNet®

Mahonia
     n : evergreen shrubs and small trees of North and Central
         America and Asia [syn: {genus Mahonia}]